Double-headed bolt and lock.



No. 727,913. PATENTED MAY 12, 1-903. J. W. DIXON & J. D. DBVINE.

DOUBLE HBADBD BOLT AND LOCK.

APPLIOATION FILED MAY 27, 1902.

N0. MODEL.

- ATENT Patented May 12, 1.9033

' FFICE.

JOSEPH W. DIXON AND JOHN D. DEVINE, OF OONNELLSVILLE, PENNSYLVANIA.

DOUBLE-HEADED BOLT AND LOCK.

SPECIFICATION forming part of Letters Patent No. 727,913, dated May 12,1903. Application filed May 27, 1902. serial No. 109,205. (No model.)

1'0 aZZ whom it may concern:

Be it known that we, JOSEPH W. DIXON and JOHN D. DEVINE, citizens of theUnited States of America, residing at Oonnellsville, in the 5 county ofFayette and State of Pennsylvania,

have invented certain new and useful Improvements in Double-Headed Boltsand Locks, of which the following is a specification, reference beinghad therein to the ac- IO companying drawings.

This invention relates to certain new and useful improvements inbolt-locks, and relates more particularly to a double-headed bolt andlock.

The object of the present invention is to provide a threadless bolt andalso dispense with the use of a nut.

Our present invention further con templates to provide a device of theabove-described class that will be extremely simple in construction,strong, durable, comparatively inexpensive to manufacture, and highlyefficient in its use.

- With the above and other objects in View 2 the invention consists inthe novel construction, combination, and arrangement of parts to behereinafter more fully described, and specifically pointed out in theclaims.

In describing the invention in detail reference is had totheaccompanying drawings, forming a part of this specification, andwherein like numerals of reference indicate like parts throughout theseveral views, in which Figure l is a plan view of our improved bolt andlock. Fig. 2 is a vertical sectional view thereof. Fig. 3 is a detailView of the bolt. Fig. 4 is a like view of the washer.

In the drawings the reference-numeral 1 represents the piece ofmaterial, or it may be two or three pieces of material that are to belocked together by means of our improved bolt and lock, and 2 representsa bolt carrying a small head 3 and a largehead 4, said' bolt having alsoformed therein a contracted neck or shank portion 5. Thereference-numeral 6 represents a washer, the central opening 7 of whichis suificiently large to pass over the smaller head 13 of the bolt.

8 represents a locking-plate having its cention bent outwardly, as at11. A circular opening 9 is formed in the plate to one side of the saidcentral portion which communioates with a slot 10, formed in theoutwardlybent portion'of the plate. Said locking-plate 5 '5 ispreferably constructed of spring-steel. The operation of our improvedbolt-look is as follows: The. bolt is inserted through the raisedportion 11 will form a locking engagement'that will prevent the boltfrom turning or jarring loose.

When it is desired to remove the bolt, the locking-plate is operated inthe reverse direction, when the bolt may be easily removed after thelocking-plate is disengaged from the head 4 of the bolt.

The many advantages obtained by the use of our improved device will bereadily apparent from the foregoing description, taken in connectionwith the accompanying drawings.

It will be noted that various changes may be made in the details ofconstruction with out departing from the general spirit of ourinvention.

. Having fully described our invention,what we claim as new, and desireto secure by Lettom Patent, is ,7

1. In a bolt-lock, the combination with a double-headed bolt, of aresilient lockingplate in engagement with one of the heads of said bolt,said plate having flat end portions, and an outwardly curved centralportion formed with a longitudinal slot, and a-washer arranged in theoutwardly-curved portion of the said plate for preventing the accidentaldisplacement thereof, substantially as described. I

2. In a bolt-lock, the combination with a double-headed bolt, of aresilient lockingplate provided with an outwardly-curved centralportion, said outwardly-curved portion being slotted to receive one ofthe heads of the said bolt, and a washer encirclingthe said/ bolt, saidwasher having its edges beveled and being arranged in theoutwardly-curved portion of the said looking-plate.

3. In a bolt-lock, the combination of a bolt provided at each end with ahead, said heads being of different diameters, a locking-plate providedwith an outwardly-curved portion having a longitudinal slot terminatingin an enlarged circular opening in one end of the plate, and a Washerencircling the bolt, and normally in engagement with the curved portionof the said plate, substantially as described.

4:. In abolt-lock, the combination of a bolt having a head, an engagingmeans at the end opposite to the said head, a resilient lookingplate inengagement with the said means, said plate being provided intermediateits ends with an outwardly-curved portion, and a-Washer arranged in theoutwardly-curved portion, substantially as described.

In testimony whereof We affix our signatures in the presence of twoWitnesses.

JOSEPH W. DIXON. JOHN D. DEVINE. Witnesses:

JOHN NOLAND, E. E. POTTER.

